Well for me they are, but for some people they may be able to tell the difference between them all. Here is a link to show you all the different types, sizes, brands, and prices. http://forums.cnet.com/7723-10149_102-273834.html
Personal GPS systems are smaller, portable GPS systems. They still have most of the capabilities of normal GPS devices including location, distance and most of the time a touch screen. There are many personal GPS systems available. http://www.nextag.com/personal-gps/compare-html
They are one in the same. All GPS's are navigation systems, but not all nav systems are GPS's.
Are the GPS systems in Ford F150 2010 the same size?
Garmin's tend to run cheaper than other GPS systems. As far as the navigation, all GPS systems are pretty much the same. The differences come into play with the features.
Most personal GPS systems come with software to download to your computer. You may also be able to track them online.
Magellan is just the name of a company that makes brands of GPS systems. They make car, handheld, and mobile GPS navigation systems and they are used the same way as any other brand of GPS systems.
Walmart does sell gps systems. They can be found in the electronics system with all the other gps systems. Or they can be found in the clearance aisle sometimes.
PCMag.com is one of the best and quickest ways to get reviews on GPS navigation systems. You can read reviews on different GPS systems all in one place.
Most of the gps systems have this feature already. Some don't. it all depends on the brand name and what they have to offer. This is a great little tool to have just in case something happens to your cars dash.
GPS systems are updated daily by sattelites, you can find your fastest GPS systems by reading all of their specs before purchasing
No, not all GPS systems are universal, so make sure to research the model you're looking to buy and see that it is universal and compatible with where you are wanting to travel.
The earliest personal GPS systems were handheld, and were capable of displaying the user's location on an electronic map. They were first sold around 1980, and there were more than 150 million turn-by-turn navigation systems worldwide in mid-2009.